Renewable moisture trap



Patented Nov. 22,1927.

UNITED STATES PATENT OFFICE.

RUDOLPH P. EXTEN, OF CLINTON, IOWA, ASSIGNOR T0 CLIMAX ENGINEERING..COM-

PANY, OF CLINTON, IOWA, A

CORPORATION OF DELAWARE.

RENEWABLE MOISTURE TRAP.

Application filed January This invention relates to a renewable moisturetrap, and more particularly to a calcium chloride cartridge adapted tobe removably engaged in a sleeve interposed in the pipe line of arefrigerant circulating system, thereby affording an arrangement whereinthe water contained in the refrigerant may be readily removed by thecalcium chloride containing cartridge after which the saturatedcartridge may be replaced by a. dry one so that the moisture may bedeh.- nitely removed from the refrigerant within the circulating system.

It is an object of this invention to provide a pipe line of arefrigerating system with a removable sleeve within which a renewablemoisture removing cartridge is placed for absorbing the moisture fromthe circulating refrigerant.

It is also an object of this invention to provide renewable cartridgesin the pipe line system of a refrigerating plant with said cartridgescontaining calcium chloride or other deliquescent substances ofahygroscopic character for the purpose of absorbing the moisture from therefrigerant passing over said cartridges.

It is an important object of this invention to provide the refrigerantcirculating pipe system of a refrigerating plant With a desiccator whichis readily removable from the system and which isadapted to abstract thewater contained in the refrigerant so that the water collected in saidcartridges may be definitely removed from the system.

Other and further important objects of this invention will be apparentfrom the disclosures in the specification and accompanying drawings.

This invention (in a preferred form) is illustrated in the drawings andhereinafter more fully desecribed.

On the drawings:

Figure l is a longitudinal view of a portion of a refrigerating pipeline system with parts broken away to disclose a renewable moisture trapembodying the principles of this invention.

Figure 2 is an end view ofthe device disclosed in Figure l, with theclamp bolts removed.

As shown on the drawings:

The reference numeral 1 indicates a air of spaced aligned pipe sectionsor coup ers, each of which has integrally formed on the e, 1926. serial'No. 79,599.

outer end thereof, a transverse elliptical flange 2 has apertures 3therein to permit-k each pipe section l to be rapidly clamped by boltsor other similar means to a similar flange formed on one end of asection of a refrigerant pipe line. Each of the pipe sections isprovided with a longitudinal assage 4 through which the circulatingrefrigerant from a refrigerating pipe system is adapted to pass.Integrally formed on the inner end of each of the pipe sections l is aclamping plate or shield 5, having a plurality of apertures or openings6 therein. Each of the clamping plates 5 is also provided with acircular lgroove 7 in one surface thereof, concentric with the passage4. The two clamping plates 5 are spaced apart and are separated by aremovable sleeve or pipe section 8, the ends of which seat in the groove7 of said plates against packing rings or washers 9, which are seated insaid grooves, thereby hermetically sealing the sleeve to the pipesections.

Disposed within the pipe section or sleeve 8 is a renewable cartridge 10which contains a supply of calcium chloride. The sleeve 8 is clampedbetween the clamping plates 5 by means of retaining bolts 11 whichproject through the openings 6 of said clamping plates and connect thesame, thereby removably clamping said sleeve in position with theimproved calcium chloride cartridge contained therein.

It is to be noted thatl the passages 4 in the couplers 1 have smallerdiameters or crosssectional areas than the cartridge 10, and are muchsmaller in cross-sectional area than the passage through the sleeve 8.Shoulders are thereby formed adjacent the junctions between the sleeve 8andthe cooplers 1, which effectively prevent longitudinal movement ofthe cartridge 10 and retains it detinitely within the sleeve 8regardless of the Ipressure in the pipe line.

It will thus be seen that the improved device consisting of theremovable pipe sleeve 8 and the renewable calcium chloride cartridge 10positioned between the clamping plates 5 of the pipe sections l, forms aunit adapted to be removably engaged in a pipe line refrigerantcirculating system of a refrigeratin plant. The refrigerant passingthrough t e passage formed in one of the pipe sections enters the sleeve8 and passes over the cartridge 10 before entering the that controlvalves may be mounted in posisecond or opposite pipe section 1 tocontinue on through the system. l As the refrigerant passes through thepipe sleeve 8'the calcium chloride. within the cartridge acts as adesiccator which in this instance, removes the water from therefrigerant. When the calcium chloride within the cartridge issuliciently saturated, the bolts may be released and the stem 8 removedto permit the cartridge 10 to be taken out of said sleeve and replacedby a new dry cartridge, after which thesleeve may be again clamped inposition between the clamping plates 5 of the pipe sections 1. I t willof course, be understood ltion in the refrigerant pipe line systemadjacent the ends of the pipesections 1 of the renewable moisture trapunit, so that the circulation of the refrigerant may be shut off when itbecomes necessary to renew a cartridge within the sleeve 8. The improvedrenewable calcium chloride cartridge acts as a desiccator whereby thewater from the circulatinfgl refrigerant may be definitely removed frornthe system while said refrigerant is in circulation.

I am aware that numerous details of construction may be varied throughya wide range maaar@ without departing from the principles of thisinvention, and I therefore do notpurpose limiting the patent granted,otherwise than necessitated by the prior art.

I claim as my invention: i

l. In a moisture trap unit, a pair of spacedpipe sections, flanges onthe adjacent ends of said pipe sections, a sleeve clamped between saidflanges, and a moisture collecting cartridge disposed within saidsleeve, said flanges providing shoulders ladjacent said pipe sections toabut said cartridge upon a relatively small horizontal movement thereof,

2. In a device of the class described, a pair of spaced pipe sectionshaving langes thereon, means for including said pipe sections 1n a pipeline, a sleeve removably disposed between said flanges, means foi` her-RUDOLPH P. EXTEN.

